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RUSKA 7750i
Users Manual
Value
-330
Self-Test Failed. Check the display for the test that failed.
-350
Queue Overflow. The error queue was full and messages were lost.
-400
Query error. A read request was received when there was nothing to read.
500
Controller Malfunction. Internal control failure.
501
High Limit Exceeded. The pressure was greater than the high limit.
502
Low Limit Exceeded. The pressure was less than the low limit.
503
Slew Limit Exceeded. The pressure changed faster than the slew limit allowed.
504
Negative Qc Limit Exceeded.
505
ARINC Limits Exceeded.
521
Pressure Over Range. The pressure reading is outside the range of the DPC.
531
Oven Temp Over Range. Either the transistor that drives the heater for the quartz bourdon tube
sensor, or the oven temperature sensor itself is malfunctioning. To observe the oven
temperature, select OK the select MENU/DISP. Check the transistor and sensor for malfunction,
requesting service if necessary.
532
Vacuum Sensor Over Range.
533
Case Pressure Over Range. Select OK, then reduce the pressure at the case reference port to
30 psia or lower.
538
Automatic Vent.
540
Mechanical Zeroing Needed. The zero point of the quartz bourdon tube sensor is beyond the
range of the compensation circuit. The zero is adjusted by the software, but should be manually
adjusted for complete accuracy.
542
Oven Control Failure. The temperature controller is unable to keep the sensor at the proper
temperature.
545
Sensor Communication Error. Unable to communicate with sensor.
546
Sensor Calibration Lost. The sensor has lost its calibration, and must be recalibrated.
550
Zero Aborted. Zeroing has been aborted by local or remote.
600
Factory Data Lost. Internal factory constants have been lost. Contact Fluke for more information.
601
Calibration Mode. The calibrate button must be pressed before SCPI calibration commands can
be executed.
602
Model Changed. Clear Memory? The downloaded update does not match the installed software.
DO NOT CLEAR this error. Download the correct software.
603
Waiting for Calibration. The previous calibration point has not completed.
707
Pressure Too High.
708
Cannot Calibrate in Pt Mode. The Qc sensor cannot be calibrated in Pt (Absolute) mode. It must
be calibrated in Qc (Differential) mode.
800
Solenoid Over-Temperature. The control solenoids have over-heated. Wait until they have
cooled before entering Control mode.
B-2
Table B-2. Summary of Error Messages, continued
Description and Corrective Action
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